Electron house teaching aid



FIG. 1 is a top right front elevation view of an electron house teaching aid showing my new design in a joined state;

FIG. 2 is another top right front elevation view thereof in a separated state;

FIG. 3 is top plan view of FIG. 1;

FIG. 4 is a left elevation view thereof;

FIG. 5 is a right elevation view thereof;

FIG. 6 is a rear elevation view thereof; and,

FIG. 7 is a front elevation view thereof.

The broken lines immediately adjacent to the shaded areas depict the bounds of the claimed design, while all other broken lines are directed to environment. In addition, the unshaded surfaces that directly adjoin the claimed solid line edges form no part of the claimed design. 

CLAIM The ornamental design for an “electron house teaching aid”, as shown and described. 